TPS54325PWP PS54325 TPS54325PWPR TSSOP Power Semiconductor Devices

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Features

D-CAP2T Mode Enables Fast TransientResponse
Low Output Ripple and Allows Ceramic OutputCapacitor
Wide Vcc Input Voltage Range: 4.5 V to 18 VWide Vin Input Voltage Range: 2.0 V to 18 VOutput Voltage Range: 0.76 V to 5.5 V
Highly Efficient Integrated FET's Optimized forLower Duty Cycle Applications - 120 mn (HighSide) and 70 m0 (Low Side)
High Efficiency, less than 10 pA at shutdownHigh lnitial Bandgap Reference AccuracyAdjustable Soft Start
Pre-Biased Soft Start
700-kHz Switching Frequency (fsw.Cycle By Cycle Over Current LimitPower Good Output

Applications

Wide Range of Applications for Low VoltageSystem
Digital TV Power Supply
High Definition Blu-ray Discrm PlayersNetworking Home TerminalDigital Set Top Box (STB)

Description

The TPS54325 device is an adaptive on-time DCAP2 mode synchronous buck converter. TheTPS54325 device enables system designers tocomplete the suite of various end equipment's powerbus regulators with a cost effective, low componentcount, low standby current solution.

The main control loop for the TPS54325 uses the DCAP2 mode control which provides a very fasttransient response with no external components. TheTPS54325 also has a proprietary circuit that enablesthe device to adapt to both low equivalent seriesresistance (ESR) output capacitors, such asPOSCAP or SP-CAP,and ultra-low ESR ceramiccapacitors. The device operates from 4.5-V to 18-VVCC input , and from 2.0-V to 18-V VIN input powersupply voltage. The output voltage can beprogrammed between 0.76 V and 5.5 V. The devicealso features an adjustable slow start time and apower good function. The TPS54325 is available inthe 14 pin HTSSOP package, and designed tooperate from -40"C to 85°C

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